1870 Barcelona Workers' Congress

1870 Barcelona Workers' Congress
An engraving of the Workers' Congress of 1870 that was held at the Teatro Circo in Barcelona.
Native name Congreso Obrero de Barcelona de 1870
Date18–26 June 1870 (1870-06-18 1870-06-26)
VenueTeatro Circo
LocationBarcelona
Also known asFirst Spanish Workers' Congress
TypeCongress
MotiveThe organization of Spanish workers
OutcomeFoundation of the Spanish Regional Federation of the International Workingmen's Association

The 1870 Barcelona Workers' Congress (officially: First Spanish Workers' Congress) was a congress that brought together, from 18 to 26 June 1870, 89 delegates from workers' societies in Barcelona and in which the Spanish Regional Federation of the International Workingmen's Association (FRE-AIT) was founded. It is considered the founding act of anarchism in Spain.